PROBLEM TO BE SOLVED: To provide a sterilizing device for a sterilizing touch panel, which disinfects a contact area when a user comes into contact with or comes close to the contact area of the sterilizing touch panel.SOLUTION: The sterilizing device comprises a light guiding member 14 and an ultraviolet light source 12. The light guiding member 14 has one surface 144. The ultraviolet light source 12 emits an ultraviolet beam 150 such that the ultraviolet beam 150 is reflected totally within the light guiding member 14. When a deposit 15 comes into contact with or is deposited on the surface 144, a part of a beam 149 in the light guiding member 14 leaks, penetrates the surface 144 due to the total reflection phenomenon, and irradiates the deposit 15.【課題】使用者が殺菌式タッチパネルの接触領域に接触又は接近したとき、当該接触領域を消毒する殺菌式タッチパネルの殺菌装置を提供する。【解決手段】本発明の殺菌装置は導光体１４と紫外線光源１２とを備えている。導光体１４は一つの表面１４４を有している。紫外線光源１２は紫外線ビーム１５０が導光体１４内で内部全反射されるように紫外線ビーム１５０を射出させる。付着物１５が表面１４４に接触又は付着しているとき、導光体１４内のビーム１４９の一部が漏れ全反射現象により表面１４４を透過して付着物１５に照射される。【選択図】図２
